High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof

A high-entropy alloy and plasticity technology, applied in the field of metal materials, can solve the problems of unfavorable processing technology, difficulty in concentration, and limitation of the development of antibacterial metal materials.

Active Publication Date: 2020-05-22
NORTHEASTERN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher content of copper is also very unfavorable to the casting, forging, rolling and other processing techniques of stainless steel materials.
[0004] At the same time, most antibacterial stainless steels only optimize the alloy composition, which makes it difficult for the material to concentrate the excellent properties of each element in the alloy composition, and limits the development of antibacterial metal materials to a certain extent.

Method used

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  • High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof
  • High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof
  • High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] A high-strength plastic antibacterial high-entropy alloy Al 0.4 CoCrCu 1.0 FeNi, the ratio of each element is molar ratio.

[0049] The preparation method of the high-strength plastic antibacterial high-entropy alloy comprises the following steps:

[0050] (1) According to the alloy composition Al 0.4 CoCrCu 1.0 FeNi, raw materials, wherein, the ratio of each element in the alloy is a molar ratio;

[0051] (2) After the vacuum electric arc furnace is adjusted to an oxygen-free atmosphere, smelting is carried out. Specifically, Al, Co, Cr, Cu, Fe and Ni raw materials are sequentially added to the electric arc furnace, and the Al raw materials are guaranteed to be below, and Co, Cr, Cu, Fe and Ni raw materials are evenly mixed on top, and the electric arc furnace is evacuated to a vacuum degree of 3×10 -3 After Pa, argon gas is introduced into the furnace, and the argon gas pressure is 0.05 Pa. Melting is carried out. The melting time is 12 minutes to obtain alloy li...

Embodiment 2

[0058] A High Strength and Plasticity Antibacterial High Entropy Alloy CoCrCu 0.1 FeNi, the ratio of each element is molar ratio.

[0059] The preparation method of the high-strength plastic antibacterial high-entropy alloy comprises the following steps:

[0060] (1) According to the alloy composition CoCrCu 0.1 FeNi, raw materials, wherein, the ratio of each element in the alloy is a molar ratio;

[0061] (2) After the vacuum electric arc furnace is adjusted to an oxygen-free atmosphere, smelting is carried out. Specifically, Al, Co, Cr, Cu, Fe and Ni raw materials are sequentially added to the electric arc furnace, and the Al raw materials are guaranteed to be below, and Co, Cr, Cu, Fe and Ni raw materials are evenly mixed on top, and the electric arc furnace is evacuated to a vacuum degree of 1×10 -3 After Pa, argon gas is introduced into the furnace, and the argon gas pressure is 0.02 Pa. Melting is carried out. The melting time is 12 minutes to obtain alloy liquid, whi...

Embodiment 3

[0065] A High Strength and Plasticity Antibacterial High Entropy Alloy CoCrCu 1.0 FeNi, the ratio of each element is molar ratio.

[0066] The preparation method of the high-strength plastic antibacterial high-entropy alloy comprises the following steps:

[0067] (1) According to the alloy composition CoCrCu 1.0 FeNi, raw materials, wherein, the ratio of each element in the alloy is a molar ratio;

[0068] (2) After the vacuum electric arc furnace is adjusted to an oxygen-free atmosphere, smelting is carried out. Specifically, Al, Co, Cr, Cu, Fe and Ni raw materials are sequentially added to the electric arc furnace, and the Al raw materials are guaranteed to be below, and Co, Cr, Cu, Fe and Ni raw materials are evenly mixed on top, and the electric arc furnace is evacuated to a vacuum degree of 3×10 -3 After Pa, argon gas is introduced into the furnace, and the argon gas pressure is 0.05 Pa. Melting is carried out. The melting time is 12 minutes to obtain alloy liquid, whi...

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Abstract

The invention provides a high-strength-plasticity antibacterial high-entropy alloy and a preparation method thereof. The expression of the high-strength-plasticity antibacterial high-entropy alloy isAl<x>CoCrCu<y>FeNi, wherein x is greater than or equal to 0 and less than or equal to 0.5, y is greater than or equal to 0.1 and less than or equal to 1.2, and the ratio of the elements is the molar ratio. The preparation method comprises the steps of adjusting a vacuum arc furnace to an anaerobic atmosphere, adding Al, Co, Cr, Cu, Fe and Ni in sequence, controlling the vacuum degree in the furnace, introducing argon at specific air pressure, and conducting smelting and casting to obtain the high-strength-plasticity antibacterial high-entropy alloy. The antibacterial high-entropy alloy prepared through the method has the broad-spectrum antibacterial performance, also has the high strength and plasticity and can meet the special requirements in some severe environments.

Description

Technical field: [0001] The invention belongs to the technical field of metal materials, and in particular relates to a high-strength plastic antibacterial high-entropy alloy and a preparation method thereof. Background technique: [0002] Antibacterial materials refer to a new class of functional materials that can inhibit or kill microorganisms. With the development of antibacterial alloy materials, in addition to its outstanding contribution in the medical field, it is also increasingly favored by the market in other fields, such as food processing and living and home decoration. More importantly, many countries' important engineering facilities and equipment, such as space stations, aircraft fuel systems, buried pipelines, energy mining platforms, aircraft carriers, etc., have found problems with microbial corrosion in metal materials used in these projects, and the advent of antibacterial alloy materials is just right It also provides new ideas and new methods for inhi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C1/02
CPCC22C1/02C22C30/02
Inventor 徐大可卢一平周恩泽李中范永强王福会
Owner NORTHEASTERN UNIV
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